Home / 1,416.13-2,124.10-868.39

Finding the Fourth Proportional to 1,416.13, 2,124.10 and 868.39

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Solution

The fourth proportional to 1,416.13, 2,124.10 and 868.39 is: 1,302.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.13 : 2,124.10 = 868.39 : x
  2. Step 2: Convert to fraction form
    1,416.13/2,124.10 = 868.39/x
  3. Step 3: Cross multiply
    1,416.13x = 2,124.10 × 868.39
  4. Step 4: Simplify right side
    1,416.13x = 1,844,547.20
  5. Step 5: Solve for x
    x = 1,844,547.20/1,416.13
  6. Step 6: Final answer
    x = 1,302.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.